Home / 7,690.59-11,535.39-2,144.72

Finding the Fourth Proportional to 7,690.59, 11,535.39 and 2,144.72

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Solution

The fourth proportional to 7,690.59, 11,535.39 and 2,144.72 is: 3,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.59 : 11,535.39 = 2,144.72 : x
  2. Step 2: Convert to fraction form
    7,690.59/11,535.39 = 2,144.72/x
  3. Step 3: Cross multiply
    7,690.59x = 11,535.39 × 2,144.72
  4. Step 4: Simplify right side
    7,690.59x = 24,740,123.96
  5. Step 5: Solve for x
    x = 24,740,123.96/7,690.59
  6. Step 6: Final answer
    x = 3,216.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.